Consider a relational schema R(A, B, C) with a functional dependency B ? C. If A is a candidate key of R, could R be in BCNF and, if so, under what conditions?
What will be an ideal response?
The only way R could be in BCNF is if B is a key of R.
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Select all that apply. Which of the following is a check for data accuracy?
a. the user enters the number of hours watching movies in a given day b. the user enters a number in an allowable range c. the user selects a username of any length, using any keyboard characters d. the user enters a phone number to be formatted as (555)555-5555
Describe the role of a default gateway in a routing table.
What will be an ideal response?
The three available Markup views are No Markup, All Markup, and ________
Fill in the blank(s) with correct word
Word is able to convert PDF documents to Word documents flawlessly, including conversion of text and graphics
Indicate whether the statement is true or false